6.1.0.0.1 Link procedures

The Link../ns-2/ns-link.tcl is implemented entirely in Otcl. The OTcl SimpleLink class uses the C++ LinkDelay class to simulate packet delivery delays. The instance procedures in the class Link are:

[]head../ns-2/ns-link.tclLink::head	returns the handle for head _.
[]queue../ns-2/ns-link.tclLink::queue	returns the handle for queue _.
[]link../ns-2/ns-link.tclLink::link	returns the handle for the delay element, link _.
[]up../ns-2/ns-link.tclLink::up	set link status to ``up'' in the dynamics _ element. Also, writes out a trace line to each file specified through the procedure []trace-dynamics.
[]down../ns-2/ns-link.tclLink::down	As with []up, set link status to ``down'' in the dynamics _ element. Also, writes out a trace line to each file specified through the procedure []trace-dynamics.
[]up?../ns-2/ns-link.tclLink::up?	returns status of the link. Status is ``up'' or ``down''; status is ``up'' if link dynamics is not enabled.
[]all-connectors../ns-2/ns-link.tclLink::all-connectors	Apply specified operation to all connectors on the link.p An example of such usage is link all-connectors reset.
[]cost../ns-2/ns-link.tclLink::cost	set link cost to value specified.
[]cost?../ns-2/ns-link.tclLink::cost?	returns the cost of the link. Default cost of link is 1, if no cost has been specified earlier.